Low Income Housing Tax Credits and Other Tax Credit Investments - Summary of the Company's Investments in Low Income Housing Projects Accounted for Using the Proportional Amortization Method (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Investments in Affordable Housing Projects [Abstract]
Current recorded investment included in other assets	$ 177,525		$ 128,765
Commitments to fund qualified affordable housing projects included in recorded investment noted above	124,738		$ 84,145
Tax credits and benefits recognized	3,262	$ 2,321
Amortization expense included in income tax expense	$ 2,766	$ 1,843